Caspian Sea & brackish inland sea
There are two: the North Sea coast and the Baltic coast.
North Sea and Baltic Sea
The two seas on Germany's north coast are the North Sea and the Baltic Sea.
north sea and baltic sea
Finland and Sweden
Sweden and Denmark
Finland and Sweden
Poland and Finland
Lithuania and Latvia
The White Sea-Baltic Canal and the Volga-Baltic Waterway.
the north sea the north sea
Denmark, Sweden